This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 4 Air – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 4 Air Quiz 43 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... pressure systems are characterized by fair weather. A) High. B) Low. C) All the above. D) None of the above. Show Answer Correct Answer: A) High. 2. What is the effect of heating the air inside the balloon? A) Nothing the balloon stays on the ground. B) The balloon falls over. C) The balloon rises. D) The balloon barely lifts off the ground. Show Answer Correct Answer: C) The balloon rises. 3. During World II, the US military was A) Segregated. B) Integrated. C) Only open to white Americans. D) Nonexistent. Show Answer Correct Answer: A) Segregated. 4. The air conditioning compressor ..... vaporized refrigerant and allows it to flow to the condenser. A) Pressurizes. B) Cools. C) Supplies. D) Cleans. Show Answer Correct Answer: A) Pressurizes. 5. If the speed of the cyclone is more than 120 miles per hour then the cyclone is known as A) Tropical Cyclone. B) Super Cyclone. C) Severe Cyclone. D) None of these. Show Answer Correct Answer: B) Super Cyclone. 6. What is the percentage composition of nitrogen in air? A) 78%. B) 75%. C) 86%. D) None of the above. Show Answer Correct Answer: A) 78%. 7. ..... has the same temperature and moisture content throughout. A) Convection current. B) Front. C) Air mass. D) None of the above. Show Answer Correct Answer: C) Air mass. 8. Weather phenomenon happens in which layerOf atmosphere A) Troposphere. B) Thermosphere. C) Exosphere. D) None. Show Answer Correct Answer: A) Troposphere. 9. Animals get ..... from plants. A) Nitrogen. B) Oxygen. C) Carbon dioxide. D) None of these. Show Answer Correct Answer: B) Oxygen. 10. Secondary air pollutants: A) Are directly emitted from tailpipes and smokestacks. B) Are emitted indoors from the off-gassing of furniture, carpet, and other man-made fabrics. C) Are non-point sources of pollution that cannot be regulated by the Clean Air Act. D) Are produced by interactions between primary air pollutants or between primary air pollutants and other atmospheric gases. Show Answer Correct Answer: D) Are produced by interactions between primary air pollutants or between primary air pollutants and other atmospheric gases. 11. Compared to a maritime tropical air mass, a maritime polar air mass has a A) Higher temperature and less water vapor. B) Lower temperature and more water vapor. C) Higher temperature and more water vapor. D) Lower temperature and less water vapor. Show Answer Correct Answer: D) Lower temperature and less water vapor. 12. The air particles in the jar push on the water in the straw. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 13. When there is a heavy smog, then it prevents the sunrays from reaching us, which may result in deficiency of ..... A) Vitamin A. B) Vitamin C. C) Vitamin D. D) None of the above. Show Answer Correct Answer: C) Vitamin D. 14. Air pollution is not harmful to humans, animals, and plants. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. The dark coloured gas coming out of factories is called ..... A) Dust. B) Smudge. C) Smoke. D) Air. Show Answer Correct Answer: C) Smoke. 16. What can humans do to reduce the effects of acid rain? A) Use Less Energy. B) Develop Alternate Energy Sources (Solar Power, Wind Energy). C) Stop Burning Fossil Fuels. D) All of the Answers are Correct. Show Answer Correct Answer: D) All of the Answers are Correct. 17. Exosphere extend to? A) 700 km to 10, 000 km. B) 80 km to 100 km. C) 1 km to 10 km. D) 1, 000 km to 2, 000 km. Show Answer Correct Answer: A) 700 km to 10, 000 km. 18. Maritime air masses will contain more moisture than continental air masses? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. A scientist that studies the weather is called a ..... A) Teacher. B) Vet. C) Truck driver. D) Meteorologist. Show Answer Correct Answer: D) Meteorologist. 20. Which type of air mass usually contains the most moisture? A) CT. B) CP. C) MT. D) MP. Show Answer Correct Answer: C) MT. 21. Density of air is greater at high altitudes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. How does air get polluted? A) Volcano eruptions. B) Dust storms. C) Wild fires. D) All of the above. Show Answer Correct Answer: D) All of the above. 23. It is anything that makes the earth unhealthy ..... A) Love. B) Water. C) Pollution. D) None of the above. Show Answer Correct Answer: C) Pollution. 24. What is the second largest gas in the atmosphere? A) Nitrogen. B) Oxygen. C) Argon. D) Carbon Dioxide. Show Answer Correct Answer: B) Oxygen. 25. We should grow more ..... A) Plants. B) Vehicles. C) Garbage. D) Fish. Show Answer Correct Answer: A) Plants. ← PreviousNext →Related QuizzesClass 7 Geography Chapter 4 Air Quiz 1Class 7 Geography Chapter 4 Air Quiz 2Class 7 Geography Chapter 4 Air Quiz 3Class 7 Geography Chapter 4 Air Quiz 4Class 7 Geography Chapter 4 Air Quiz 5Class 7 Geography Chapter 4 Air Quiz 6Class 7 Geography Chapter 4 Air Quiz 7Class 7 Geography Chapter 4 Air Quiz 8Class 7 Geography Chapter 4 Air Quiz 9Class 7 Geography Chapter 4 Air Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books